理学 计算机输入输出设备 释 character input device 字符输入设备 将字符信息数字化后输入到计算机的设备总称。包括键盘、光学字符阅读器（OCR）、触屏、手写板等设备。
计算机硬件 输入输出设备 释文 character input device 字符输入设备
- smart card reader
- smart city
- smart city application service layer
- smart city basic data resource library
- smart city big data goal behavior analysis
- smart city big data mining technology
- smart city big data open platform
- smart city big data presentation technology
- smart city big data services platform
- smart city big data storage technology
- smart city big data visualization technology
- smart city data activation layer
- smart city dataaggregation
- smart city data cleaning
- smart city data collection
- smart city data exchange system
- smart city datalifecyclemanagement
- smart city data link
- smart city data perception
- smart city data resource directory system
- smart city data resources
- smart city data resource storage
- smart city data resource system
- smart city data storage strategy
- smart city data transmission